Silicon Carbide Sagger thiab Crucible
Cov khoom lag luam yog qhov zoo tagnrho rau muaj cov khoom muaj nqis, sinining, smelting thiab siv rau txhua yam khoom lag luam. Hauv kev lag luam kev lag luam, roj av thiab kev tiv thaiv ib puag ncig nrog ntau cov ntawv thov.
1) Thaum Tshav Kub Kub Poob Siab
2) Tshuaj lom neeg-tiv taus
3) Cov siab luv-ua kom dhau (txog 1650 °
4) Kev hnav / corrosion / oxidation resistant
5) Muaj kev ua tau zoo ntawm kev siv zog
6) ntxuav lossis etching cov chaw seem tawv tshaj plaws
7) siv rau kev sib tsoo, luaj, thiab xaim pom txiav kom zoo li tsis zoo tawg
| Tshuaj Muaj Tshuaj Sic> = | % | 90 | |
| Max.Service temp. | ºC | 1400 | |
| Refgoriness> = | SK | 39 | |
| 2kg / cm2 rawv refactoriness nyob rau hauv load t2> = | ºC | 1790 | |
| Cov Khoom Siv Physics | Modulus ntawm rupturt ntawm chav temp> = | Kg / cm2 | 500 |
| Modulus ntawm kev sib tawg ntawm 1400ºC> = | Kg / cm2 | 550 | |
| Compressive Strenht> = | Kg / cm2 | 1300 | |
| Thermal nthuav ntawm 1000ºC | % | 0.42-0.48 | |
| Pom porosity | % | 5Y20 | |
| Ceev ntom | g / cm3 | 2.55-2.7 | |
| Thermal conductivity thaum 1000ºC | Kcal / m.hr.ºC | 13.5-14.5 | |
Nqe lus piav qhia:
Crucible yog lub lauj kaub ceramic siv los tuav cov hlau rau melting nyob rau hauv lub cub tawg. Qhov no yog qhov siab zoo, kev lag luam qib crucible siv los ntawm kev ua lag luam foundry kev lag luam.
Nws ua li cas:
Crucible yog xav tau los tiv thaiv qhov sov sov ntsib hauv meltatures hlau. Cov khoom crucible yuav tsum muaj ntau dua melting taw tes tshaj li tias ntawm cov hlau tau melted thiab nws yuav tsum muaj lub zog zoo txawm tias thaum kub kub.
Nws muaj peev xwm siv lub tsev ua cov steel ntoo uas muaj cov tawv ntoo xws li zinc thiab txhuas, vim tias cov khoom siv me me ntawm qhov kub thiab txias hauv qab no. Txawm li cas los teev (flaking) ntawm ib tug steel crucible sab hauv nplaim yog teeb meem. Cov nplai no tuaj yeem paug cov yaj thiab nyias cov phab ntsa crucible sai sai. Hlau crucibles yuav ua hauj lwm yog tias koj nyuam qhuav tau pib thiab tsis txhob hnov dab tsi cuam tshuam nrog qhov ntsuas.
Cov khoom siv refractory siv nyob rau hauv Crucible siv yog av nplaum-graphite, thiab carbon ua Silicon-carbide. Cov ntaub ntawv no tuaj yeem tiv taus qhov siab tshaj plaws hauv cov haujlwm ua haujlwm. Silicon carbide muaj qhov kom zoo ntxiv ntawm kev ua cov khoom siv ruaj khov.
Peb cov av nplaum graphite bilge puab crucibles yog ntsuas rau 2750 ° F (1510 ° C). Lawv yuav lis zinc, txhuas, tooj dag / tooj dag, nyiaj thiab kub almocs. Cov chaw tsim tshuaj paus lawv tuaj yeem siv rau cov hlau cam khwb cia. Ua rau Tebchaws Meskas!
Crucible daim duab:
Tus bilge zoo li tus ("B" puab) Crucible yog puab zoo li cawv txiv hmab txiv ntoo. Lub "bilge" Dimension yog qhov uas cov cheeb tsam ntawm nws qhov dav tshaj plaws. Yog tias tsis muaj bilge diam qhia tau ces lub taub sab saum toj yog qhov dav tshaj plaws.
Ib txoj cai ntawm tus ntiv tes xoo lub xeev uas tus # ntawm "bilge" crucible muab nws li kwv yees ua haujlwm muaj peev xwm ua haujlwm ntawm txhuas. Rau brass lossis bronze siv 3 zaug tus crucible #. Piv txwv li # 10 Crucible yuav tuav kwv yees li 10 phaus ntawm txhuas thiab 30 phaus ntawm tooj dag.
Peb cov "B" Shaly crucibles feem ntau yog siv los ntawm hobbiests thiab nquag casters. Cov no yog qhov zoo, ntev ntev ua lag luam qib crucible.
Kos cov ntawv hauv qab no kom pom qhov loj me rau koj txoj haujlwm.
Yuav siv nws li cas:
Txhua tus cruciles yuav tsum tau daws nrog cov nplaig kom zoo (Lifting cuab yeej). Tsis huv tus Phuav tuaj yeem ua rau kev puas tsuaj lossis ua tiav tsis ua tiav ntawm Crucible ntawm lub sijhawm tsis zoo.
Ib lub disk ntawm cov duab los qhia tuaj yeem muab tso rau ntawm tus ntoo khaub lig thiab lub cub tawg ua ntej ua ntej. Qhov no yuav hlawv, tawm ntawm ib txheej ntawm carbon hauv nruab nrab ntawm thiab tiv thaiv cov crucible los ntawm cov cub tawg los ntawm cov cub tawg. Ib txheej ntawm Plumbago (carbon xim dub) yog tib yam.
Nws yog qhov zoo tshaj plaws los siv cov ntoo khaub lig sib txawv rau txhua hom hlau kom tsis txhob muaj paug. Kuj nco ntsoov kom ua tiav cov crucible tom qab siv. Hlau sab laug kom muaj zog nyob rau hauv ib tug crucible tuaj yeem nthuav tawm ntawm rov ua cua sov thiab rhuav tshem nws.
Thov npau taws tshiab cruciles lossis cov uas tau muaj nyob rau hauv cia. Ua kom sov qhov khoob crucible rau 2 teev ntawm 220 f (104 c). (Siv qhov cua txaus siv tau haus luam yeeb ua cov kab laum.) Tom qab ntawd hluav taws kub ntoo crucible. Cia cov crucible rau txias rau chav sov nyob rau hauv lub cub ua ntej siv. Cov txheej txheem no yuav tsum tau ua raws txhua tus crucailes txhua tus tshiab thiab rau cov crucible uas yuav tau nthuav tawm cov xwm txheej damp hauv kev cia.
Khaws txhua qhov chaw nyob hauv qhov chaw qhuav. Ya raws tuaj yeem ua rau tus ntoo khaub zig rau cov cua sov. Yog tias nws tau nyob rau hauv cia rau ib lub sijhawm nws yog qhov zoo tshaj plaws kom rov ua qhov tempering.
Silicon carride crucailes yog qhov tsawg kawg nkaus hom yuav nqus cov dej hauv kev cia thiab feem ntau tsis tas yuav ua ntej siv. Nws yog ib lub tswv yim zoo kom tua hluav taws kub tshiab rau lub tshav kub liab ua ntej nws thawj zaug siv tsav tsheb thiab nyuaj.
Cov khoom yuav tsum tau muab tso rau hauv cov ntoo ntoo loj heev. Tsis txhob "pob" Crucible, raws li cov khoom yuav nthuav ntawm cua sov thiab tuaj yeem tawg cov ceramic. Thaum cov khoom siv no tau yaj mus rau hauv "heel", ua tib zoo thauj cov khoom siv rau hauv cov pa nyom. (Ceeb Toom: Yog tias muaj kev ya raws yog nyob rau ntawm cov khoom siv tshiab uas muaj cov khoom tawg yuav tshwm sim). Ib zaug ntxiv, tsis txhob kaw hauv cov hlau. Khaws cov khoom pub rau cov txiv hmab rau hauv cov yaj kom txog rau thaum cov khoom yuav tsum tau melted.
Ceeb Toom !!!: Crucibles yog txaus ntshai. Melting hlau nyob rau hauv ib tug crucible yog txaus ntshai. Pouring hlau rau hauv cov pwm yog qhov txaus ntshai. Crucible yuav swb yam tsis muaj kev ceeb toom. Cruciles tuaj yeem muaj cov khoom zais zais zais thiab tsim khoom uas tuaj yeem ua rau tsis ua haujlwm, kev raug mob ntawm tus kheej, raug mob rau cov neeg tuaj saib xyuas thiab poob lub neej.
Crucible puag thaiv
Nqe lus piav qhia:
BCS ib lub hauv paus thaiv yog qhov ntsuas kub uas siv los tsa ib qho crucible rau cov cua sov ntawm thaj chaw cua sov.
Nws ua li cas:
Lub hauv paus thaiv hluav taws xob feem ntau siv hauv cov roj phom tua hluav taws los txhawb nqa tus ntoo khaub zig uas tawg ncaj qha rau cov ntoo thuv ntawm tus ntoo khaublig. Yog tias cov nplaim hluav taws raug tso cai ncaj qha tawm tsam tus ntoo khaub lig heev nws tuaj yeem ua rau muaj kev cuam tshuam ntawm phab ntsa ntawm tus ntoo khaub lig ntawm lub neej. Txoj kev tsim nyog los tiv thaiv qhov no yog siv lub hauv paus thaiv kom nce cov crucible tawm ntawm thaj chaw kub hnyiab.
Tsa cov crucible kuj tso cai rau nws yuav nyob rau hauv "tshav kub" ntawm lub cub tawg. Txawm hais tias cov nplaim taws hlawv nkag rau hauv lub cev ntawm lub cub tawg nyob hauv qab qhov chaw kub tshaj plaws yog los ntawm nruab nrab mus txog saum. Nws yog nyob rau hauv thaj av no hais tias cov phab ntsa ntawm lub cub tawg yog rhuab los ntawm cov pa pa roj ntau dua. Muaj ob tog ntawm crucible nyob rau hauv lub teb crucible nyob rau hauv lub cheeb tsam no txhawb nqa cua sov zoo tshaj plaws los ntawm cov roj cua sov ntawm cov cua sov ntawm cov nplaim taws pom.
Yuav siv nws li cas:
Lub hauv paus thaiv yuav tsum tau siab txaus kom muaj cov nplaim taws tawg nrog sab saum toj ntawm qhov thaiv. Nws tsis ua li yog tias sab saum toj ntawm cov block yog siab dua lub burner inlet ib yam nkaus. Dab tsi koj tsis xav tau yog kom muaj cov nplaim taws tsoo lub nyias nyias ob sab ntawm tus ntoo khaub zig. Nws tseem siv tau yog tias nplaim taws ua rau cov nplaim hluav taws ntawm cov crucible raws li qhov no tsis yog semeptible hnav los ntawm cov roj.
Crucibles thiab saggers:
Shandong Zhongpeng Tshwj Xeeb Ceramics Co., Ltd yog ib qho loj tshaj plaws silicon carbide khaub thuas cov khoom siv tshiab hauv Suav teb. Txuj lom sic: moh lub hardness yog 9 (tshiab Moh lub hardness yog 13), nrog kev tiv thaiv zoo heev rau kev tawm tsam - tsis kam thiab anti-oxidation. Sic cov khoom lag luam lub neej yog 4 txog 5 zaug ntev dua 92% alumina khoom. Lub mor ntawm RBSIC yog 5 txog 7 zaug ntawm snbsc, nws tuaj yeem siv rau cov duab nyuaj ntxiv. Cov txheej txheem hais tawm tau nrawm, kev xa khoom yog li tau cog lus tseg thiab qhov zoo yog thib ob rau tsis muaj. Peb ib txwm ua siab ntev hauv peb lub hom phiaj nyuaj thiab muab peb lub siab rov qab rau tib neeg.
